Is there information on how the Fugaku machines are connected together? The highest performing Power9 ones seem to use InfiniBand, but is that still true with t

Is there information on how the Fugaku machines are connected together? The highest performing Power9 ones seem to use InfiniBand, but is that still true with the ARM devices? Edit: seems to be a Fujitsu designed interconnect [0]. Wonder how much of the overall performance is dependent on the difference in communication. https://www.fujitsu.com/global/documents/solutions/business-technology/tc/catalog/08514929.pdf https://www.fujitsu.com/global/documents/solutions/business-...